request: Declined request can be changed

The TextBox is showed in PENDING and DECLINED requests. So the reason can be modified after decline the request.

circle/request/templates/request/detail.html

@@ -133,14 +133,14 @@
           Are you adding a new action type?
         {% endif %}
 
-        {% if object.status == "PENDING" and request.user.is_superuser %}
+        {% if object.status != "ACCEPTED" and request.user.is_superuser %}
           <hr />
 
           <div id="request-buttons">
             <form method="POST">
               {% csrf_token %}
               <p>
-              <textarea class="form-control" placeholder="{% trans "Reason (sent to the user if the request is declined)" %}" name="reason"></textarea>
+              <textarea class="form-control" placeholder="{% trans "Reason (sent to the user if the request is declined)" %}" name="reason">{{object.reason}}</textarea>
               </p>
               <button class="btn btn-danger" type="submit">
                 <i class="fa fa-thumbs-down"></i>

circle/request/views.py

@@ -75,7 +75,7 @@ class RequestDetail(LoginRequiredMixin, DetailView):
         if not user.is_superuser:
             raise SuspiciousOperation
 
-        if self.get_object().status == "PENDING":
+        if self.get_object().status != "ACCEPTED":
             accept = self.request.POST.get("accept")
             reason = self.request.POST.get("reason")
             if accept: